Glossary pillar — part of an ongoing series defining trading terms in plain English. See also: What is a stop-loss? · What is VWAP?
Leverage is trading with borrowed money: controlling a position larger than the capital you actually deposited. With 10x leverage, 10,000 position — every price move gets magnified tenfold, in both directions. It's simultaneously the reason small accounts can produce meaningful returns and the single most common mechanism by which new traders' accounts reach zero.
The mechanics: margin and notional#
Two terms carry all of it:
- Notional value — the full size of the position ($10,000 above)
- Margin — your own money held as collateral against the borrowed portion ($1,000)
Your percentage gain or loss is always calculated on notional, but paid from your margin. A 1% adverse move on that 10x position costs 200. The math scales brutally:
| Price move | P/L at 1x | P/L at 10x |
|---|---|---|
| +1% | +$10 | +$100 (+10%) |
| −1% | −$10 | −$100 (−10%) |
| −10% | −$100 (−10%) | −$1,000 (account gone) |
Liquidation: how leveraged accounts die#
Brokers won't let losses exceed your margin. When your equity falls below the maintenance requirement, the position is force-closed automatically — liquidation. At 10x leverage, roughly a 9–10% adverse move wipes you out; at 50x (common on crypto exchanges), about 2%. Liquidation isn't a penalty or a surprise fee — it's arithmetic arriving exactly on schedule, usually during the volatile spike you were most confident about.
This is also why leverage changes behavior, not just exposure: at high leverage there is no room for a normal pullback. A trade that would be a routine dip at 1x becomes a stop-out or liquidation at 20x — you're forced to be right immediately, which even professionals aren't (why survival comes first).
The two honest uses of leverage#
1. Capital efficiency (the professional use). Institutions use modest leverage to right-size positions without parking idle cash — 2–5x, always paired with predefined exits. The leverage amplifies an already-tested edge; it doesn't substitute for one.
2. Access/sizing for small accounts (the retail trap). High leverage promises "turning $500 into real positions." In practice, exchange data consistently shows high-leverage retail accounts liquidating at overwhelming rates — because the same volatility that makes the asset attractive guarantees the margin call before the thesis plays out.
The pattern separating the two uses: professionals choose leverage after planning the worst case; beginners choose it before planning anything.
Rules that make leverage survivable#
If you use it at all:
- Size from stops, not leverage: position size = risk budget ÷ stop distance (the formula). Leverage then falls out as a consequence rather than a choice.
- Keep effective leverage low — if a normal day's range could liquidate you, the setting is wrong regardless of confidence.
- Compute your liquidation price before entry, and confirm no plausible wick reaches it.
- Never let one position threaten the account — the 1–2% risk rule applies double when borrowing.
- Funding/borrowing costs exist — holding leveraged positions over time bleeds fees whether price moves or not.
One-sentence summary#
Leverage multiplies exposure, not skill: it accelerates everything — including the path to zero — which is why every serious treatment of it starts and ends with risk management.
Related series: stop-losses are the tool that keeps leverage contained · full strategy rulesets show sizing done properly
